Station-indicator.



N0. 650,95l. Patented June 5, I900. F. H'. REES.

STATION INDICATOR.

(Application filed Aug. 9, 1899.)

2 Sheets-Sheet L (No Model.)

J" Illl llll No. 650,951. Patehted June 5, 1900. F. H. REES:

STATION INDICATOR.

(A lication fil Au 9 1899 (No Model.) 2 Sheets-sheaf 2.

. I 725' "\Ii ip \\l I I I- j IIIIIIIIIIIIIIIIIIIIIIIIIIIIII1 Y IIII I-f" 3? I IIIWIIIIIIIIIII ""l 41 WW v UNITED STATES I PATENT OFFICE.

FRED HOLMES REES, OF ELMIRA, NEW' YORK.

STATION-INDICATOR.

SPECIFICATION forming part of Letters Patent No. 650,951, dated June 5,1900. Application filed August 9. 1899.1 M1 No. 726,689. (No model.)

To whom, it may concern:

Be it known that I, FRED HOLMES REES, a resident of Elmira, inthe countyof Ohemung and State of New York, have invented certain new and usefulImprovements in Station.- Indicators; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use the same.

The invention relates to station=indicators and like devices; and itsobject is to increase the efficiency and certainty of their action andto simplify the construction.

The invention consists in the construction hereinafter described'andpointed out.

Figure 1 is a broken perspective of a station-indicator. mechanism. Fig.3 is an elevation of rollerdrivingdevices. Figs. 4 and 5 are oppositeend elevations of the same. Fig; 6 is a section of a gear, spring, andinclosing cap; and Fig. 7 is a broken elevation of a modification.

Numeral 1 denotes a case of any usual or desired form, "and 2 .is awindow, which may be glazed or not. In practice when used as astation-indicator I prefer to place the words Next station above theopening which discloses said stations, as shown in the drawings.

3 and 4 are rollers, and 5 is a band marked to indicate stations orother matters. The rollers are provided with gears 6 and 7 on theirrespective shafts and adapted to cooperate by means of a pinion 8.

bearings.

To the shaft of roller 4 are fixed two ratchetwheels 10 and 11, withtheir teeth facing op positely, as shown, whereby the wheels are adaptedto be oppositelydriven.

12 denotes a bar pivotally supported at 13 by an arm 14, loose on theshaft of roller 4 and held in place lengthwise the shaft by a. washerand spring-pin.

15 and 16 denote pawls carried by the bar and situated in the planes ofthe respective ratchet-wheels. As shown, pawls 15 can be made to engagethe teeth 15 of wheel 10 and the pawl 16 the teeth .16 of wheel 11. Itis not, however, essential that these wheels be Fig. 2 is an elevationof the separate, nor that the teeth be arranged in separate planes. Theconstruction indicated in the drawings, comprising two toothed diskswhich are identical in form,though oppositely situated as respects theirteeth, is a convenient and economical construction and is preferred. t

The bar 12 and the arm 14 constitute a lever which rocks on the shaftwhenever either chain 17 is suitably manipulated to drive aratchet-wheel by means of a pawl.

18. denotes a pawl-returning spring having one end fixed to the arm 14and the other fixed to the plate 9 or other suitable support.

By this construction the indicator-band can be wound in either directionindefinitely and its direction reversed at any desired point. Both pawlsare normally held out of the path of the ratchet-teeth, but in readinessto.operate immediately whichever chain is manipulated.

The shaft of roller 4 has an angular part 4, upon which bears a spring19, which arrests the rollers as soon as the chain which drives them bymeans of the pawl and ratchet is released. The faces of said part 4 ofthe shaft may be of any desired number and are properly proportioned tocooperate with the spring to arrest the rollers when the ratchetteethare in suitable situation to be immediately engaged by aforwardly-moving pawl.

To take up the slack of the band and also provide for tension at othertimes, the gear3 is provided with a recess or chamber 3, and 9 indicatesa supporting-plate or post fixed. in the case and in which theroller-shafts have i in said chamber is placed a tension-spring 20,

tween said wheel and its shaft, one end of the spring being secured tothe shaft and the other t6 the wheel.

21 denotes a cap to cover the spring-charm ber, provided with atubular'boss 22, cooperating with a similar boss 23 on the opposite sideof the wheel to give a wide bearing between the wheel and shaft.

24 denotes screws for fastening the cap to the wheel. The spring isaccessible for varying its tension or for renewal.

The preferred form of spring holding chamber is shown in Fig. 6, inwhich the spring is inclosed between a face of the gear and a cap 25,having a shoulder 3".

constituting the operative connection be- Having thus described myinvention, what I claim as new, and desire to secure by Letters Patent,is

1. In combination with rollers for indicators or the like, gearsoperatively connecting the rollers, a reversely-acting wheel-ratchetfixed to a roller-shaft, an oscillating pawl-lever carrying adriving-pawl for each of two ratchets, and a spring normally holdingboth pawls out of the path of the ratchet-teeth, said spring beingsecured to the lever and to a fixed point.

In combination with rollers for indicators or the like, gearsoperatively connecting the rollers, one of said gears havinga springconnection with one of the rollers, a reverselyacting wheel-ratchetfixed to a roller-shaft, an oscillating pawl-lever carrying adrivingpawl for each of two ratchets, and a spring normally holding bothpawls out of the path of the ratchet-teeth, said spring being secured tothe lever and to a fixed point.

3. A compound ratchet-wheel comprising two disks fixed to each other andhaving op positely-arranged teeth and a lever operatively carrying pawlsto engage the oppositelysituated teeth of the disks, said pawls beingpivotally secured to the lever and lying nor'- mally out of engagementwith the teeth of the disks.

4. In combination with rollers for indicators or the like, gearsoperatively connecting the rollers, one of said gears being recessed andhaving a spring secured in said recess forming a connection between thegear and one of the rollers, a reversely-acting wheelratchet fixed to aroller-shaft, an oscillating pawl-lever carrying a driving-pawl for eachof two ratchets, and a spring normally holding both pawls out of thepath of the ratchetteeth, said spring being secured to the lever and toa fixed point.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

FRED HOLMES REES.

\Vitnesses:

BOYD MCDOWELL, 1-3 ERTIIA BERNSTEIN.

